C++ impact and status on Exercism

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C++ Track Management

This page provides the Exercism community with the information and tools needed to manage the C++ track.

Students

118,687

Submissions

1,355,564

Mentoring Discussions

12,289

The C++ track needs attention ⚠️

Building

C++ syllabus

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Help create the track syllabus: is a set of concepts and learning exercises put together to teach foundational elements of the programming language.

Next goal: Create a complete syllabus with at least 20 concepts. Find out more.

16 concepts being taught

Includes

4,787 learnt

Strings

4,787 learnt

Basics

9,032 learnt

Numbers

3,540 learnt

Namespaces

5,861 learnt

Booleans

6,078 learnt

Comparisons

3,032 learnt

If Statements

3,032 learnt

Arrays and Vectors

1,759 learnt

Loops

2,462 learnt

Classes

2,068 learnt

References

1,338 learnt

Enumerations

1,490 learnt

Switch Statements

1,490 learnt

Headers

873 learnt

Functions

483 learnt

13 active learning exercises

Started

Attempts

Completions

Mentoring requests

Log Levels

6,505

49,033 (avg. 7.5)

4,787 (73.6%)

134 (2.1%)

Lasagna

12,371

51,220 (avg. 4.1)

9,032 (73.0%)

164 (1.3%)

Freelancer Rates

3,978

33,553 (avg. 8.4)

3,540 (89.0%)

49 (1.2%)

Last Will

7,074

40,084 (avg. 5.7)

5,861 (82.9%)

76 (1.1%)

Pacman Rules

6,634

35,345 (avg. 5.3)

6,078 (91.6%)

72 (1.1%)

Vehicle Purchase

3,175

19,724 (avg. 6.2)

3,032 (95.5%)

28 (0.9%)

Making the Grade

2,105

34,862 (avg. 16.6)

1,759 (83.6%)

59 (2.8%)

Interest is interesting

2,647

18,580 (avg. 7.0)

2,462 (93.0%)

29 (1.1%)

Ellen's Alien Game

2,238

15,380 (avg. 6.9)

2,068 (92.4%)

27 (1.2%)

Election Day

1,476

16,124 (avg. 10.9)

1,338 (90.7%)

26 (1.8%)

Troll the Trolls

1,642

15,101 (avg. 9.2)

1,490 (90.7%)

36 (2.2%)

Doctor Data

1,113

15,293 (avg. 13.7)

873 (78.4%)

22 (2.0%)

lasagna-master

591

8,763 (avg. 14.8)

483 (81.7%)

7 (1.2%)

Practice Exercises

Learn More

Practice Exercises are exercises designed to allow students to solve an arbitrary problem, with the aim of them making use of the concepts they have learned so far.

Synced primary repo: 987f21d63219c26ec507fd88f3646dfff12e8edc (Updates should be instant)

Next goal: Implement 133 practice exercises. Find out more.

82 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

83,918

228,303 (avg. 2.7)

43,578 (51.9%)

12 (0.0%)

Leap

22,682

93,702 (avg. 4.1)

11,543 (50.9%)

2,510 (11.1%)

Reverse String

12,779

83,051 (avg. 6.5)

8,055 (63.0%)

1,502 (11.8%)

Space Age

7,803

61,253 (avg. 7.8)

3,895 (49.9%)

1,127 (14.4%)

Triangle

5,257

38,444 (avg. 7.3)

3,170 (60.3%)

765 (14.6%)

Grains

3,637

25,122 (avg. 6.9)

2,936 (80.7%)

597 (16.4%)

Raindrops

5,486

36,126 (avg. 6.6)

4,555 (83.0%)

607 (11.1%)

Pangram

2,928

21,336 (avg. 7.3)

2,338 (79.8%)

486 (16.6%)

Two Fer

2,702

11,013 (avg. 4.1)

2,256 (83.5%)

83 (3.1%)

Grade School

3,018

26,548 (avg. 8.8)

1,963 (65.0%)

224 (7.4%)

Hamming

4,554

12,814 (avg. 2.8)

3,694 (81.1%)

360 (7.9%)

Nucleotide Count

3,051

16,070 (avg. 5.3)

2,233 (73.2%)

278 (9.1%)

RNA Transcription

2,327

11,383 (avg. 4.9)

1,913 (82.2%)

169 (7.3%)

Collatz Conjecture

1,879

8,742 (avg. 4.7)

1,589 (84.6%)

51 (2.7%)

Difference of Squares

3,156

9,541 (avg. 3.0)

2,749 (87.1%)

174 (5.5%)

Nth Prime

2,109

14,156 (avg. 6.7)

1,416 (67.1%)

132 (6.3%)

Queen Attack

1,790

13,761 (avg. 7.7)

1,173 (65.5%)

108 (6.0%)

Sieve

1,743

9,464 (avg. 5.4)

1,389 (79.7%)

121 (6.9%)

Say

1,524

12,721 (avg. 8.3)

832 (54.6%)

113 (7.4%)

Gigasecond

2,786

5,524 (avg. 2.0)

1,887 (67.7%)

253 (9.1%)

Secret Handshake

1,179

6,225 (avg. 5.3)

960 (81.4%)

47 (4.0%)

Allergies

1,876

13,167 (avg. 7.0)

1,259 (67.1%)

77 (4.1%)

Protein Translation

1,158

6,731 (avg. 5.8)

953 (82.3%)

42 (3.6%)

Sum of Multiples

1,557

5,808 (avg. 3.7)

1,194 (76.7%)

71 (4.6%)

Prime Factors

1,311

4,441 (avg. 3.4)

1,063 (81.1%)

50 (3.8%)

Robot Name

1,468

9,401 (avg. 6.4)

1,022 (69.6%)

111 (7.6%)

Clock

1,059

5,446 (avg. 5.1)

608 (57.4%)

52 (4.9%)

Meetup

831

2,479 (avg. 3.0)

456 (54.9%)

23 (2.8%)

Beer Song

908

5,367 (avg. 5.9)

692 (76.2%)

34 (3.7%)

Atbash Cipher

1,681

24,943 (avg. 14.8)

1,247 (74.2%)

86 (5.1%)

Trinary

1,514

9,618 (avg. 6.4)

1,322 (87.3%)

34 (2.2%)

Binary Search

1,062

7,357 (avg. 6.9)

732 (68.9%)

40 (3.8%)

Phone Number

1,019

4,756 (avg. 4.7)

726 (71.2%)

40 (3.9%)

Series

753

3,225 (avg. 4.3)

585 (77.7%)

23 (3.1%)

Complex Numbers

926

5,087 (avg. 5.5)

598 (64.6%)

23 (2.5%)

Food Chain

910

2,458 (avg. 2.7)

658 (72.3%)

27 (3.0%)

Roman Numerals

817

2,995 (avg. 3.7)

606 (74.2%)

23 (2.8%)

Bob

2,755

16,979 (avg. 6.2)

2,241 (81.3%)

258 (9.4%)

Word Count

1,374

5,247 (avg. 3.8)

1,042 (75.8%)

90 (6.6%)

Circular Buffer

779

5,786 (avg. 7.4)

458 (58.8%)

43 (5.5%)

Crypto Square

674

4,607 (avg. 6.8)

447 (66.3%)

20 (3.0%)

ETL

1,327

3,045 (avg. 2.3)

1,076 (81.1%)

42 (3.2%)

Matching Brackets

1,041

6,385 (avg. 6.1)

823 (79.1%)

34 (3.3%)

Anagram

1,526

4,214 (avg. 2.8)

1,188 (77.9%)

95 (6.2%)

Binary Search Tree

1,016

4,577 (avg. 4.5)

331 (32.6%)

38 (3.7%)

Luhn

1,237

12,791 (avg. 10.3)

995 (80.4%)

54 (4.4%)

Acronym

896

3,795 (avg. 4.2)

682 (76.1%)

27 (3.0%)

Armstrong Numbers

1,276

5,744 (avg. 4.5)

1,100 (86.2%)

32 (2.5%)

Binary

1,164

4,165 (avg. 3.6)

925 (79.5%)

83 (7.1%)

Hexadecimal

1,241

5,584 (avg. 4.5)

1,033 (83.2%)

74 (6.0%)

Isogram

2,381

4,375 (avg. 1.8)

1,507 (63.3%)

98 (4.1%)

Pascal's Triangle

784

2,627 (avg. 3.4)

599 (76.4%)

25 (3.2%)

Perfect Numbers

284

1,787 (avg. 6.3)

241 (84.9%)

5 (1.8%)

Scrabble Score

1,129

3,268 (avg. 2.9)

859 (76.1%)

90 (8.0%)

All Your Base

776

4,163 (avg. 5.4)

517 (66.6%)

47 (6.1%)

Robot Simulator

1,139

4,261 (avg. 3.7)

646 (56.7%)

51 (4.5%)

Bank Account

507

2,180 (avg. 4.3)

252 (49.7%)

35 (6.9%)

Darts

1,448

9,494 (avg. 6.6)

1,279 (88.3%)

19 (1.3%)

Largest Series Product

258

1,845 (avg. 7.2)

205 (79.5%)

6 (2.3%)

Isbn Verifier

412

3,079 (avg. 7.5)

313 (76.0%)

12 (2.9%)

Linked List

856 (avg. 8.8)

53 (54.6%)

2 (2.1%)

Simple linked list

436

3,557 (avg. 8.2)

272 (62.4%)

14 (3.2%)

High Scores

426

3,567 (avg. 8.4)

387 (90.8%)

9 (2.1%)

Eliud's Eggs

456

1,795 (avg. 3.9)

413 (90.6%)

7 (1.5%)

Diamond

817 (avg. 8.5)

74 (77.1%)

3 (3.1%)

Run-Length Encoding

107

1,122 (avg. 10.5)

88 (82.2%)

0 (0.0%)

Rotational Cipher

389

2,724 (avg. 7.0)

348 (89.5%)

6 (1.5%)

Resistor Color

113

674 (avg. 6.0)

94 (83.2%)

2 (1.8%)

Resistor Color Duo

100

516 (avg. 5.2)

83 (83.0%)

1 (1.0%)

Minesweeper

645 (avg. 7.2)

57 (64.0%)

2 (2.2%)

Sublist

639 (avg. 9.1)

44 (62.9%)

1 (1.4%)

Zebra Puzzle

146 (avg. 3.0)

15 (31.3%)

3 (6.3%)

List Ops

1,135 (avg. 11.9)

51 (53.7%)

1 (1.1%)

Knapsack

446 (avg. 8.4)

29 (54.7%)

2 (3.8%)

Two Bucket

170 (avg. 3.3)

22 (42.3%)

0 (0.0%)

Yacht

661 (avg. 9.7)

52 (76.5%)

0 (0.0%)

Kindergarten Garden

245

1,840 (avg. 7.5)

188 (76.7%)

4 (1.6%)

D&D Character

110

913 (avg. 8.3)

72 (65.5%)

1 (0.9%)

Spiral Matrix

369 (avg. 5.7)

38 (58.5%)

1 (1.5%)

Parallel Letter Frequency

464 (avg. 5.9)

42 (53.8%)

3 (3.8%)

Pig Latin

774 (avg. 9.8)

35 (44.3%)

3 (3.8%)

Rail Fence Cipher

96 (avg. 6.0)

11 (68.8%)

1 (6.3%)

51 unimplemented practice exercises

Affine Cipher

Alphametics

Book Store

Bottle Song

Bowling

Change

Connect

Conway's Game of Life

Custom Set

Dominoes

DOT DSL

Error Handling

Flatten Array

Forth

Go Counting

Grep

Hangman

House

Killer Sudoku Helper

Ledger

Lens Person

Markdown

Matrix

Micro Blog

OCR Numbers

PaaS I/O

Palindrome Products

Poker

POV

Proverb

Pythagorean Triplet

Rational Numbers

React

Rectangles

Resistor Color Trio

REST API

Saddle Points

Satellite

SGF Parsing

Simple Cipher

Square Root

State of Tic-Tac-Toe

Strain

Tournament

Transpose

Tree Building

Twelve Days

Variable Length Quantity

Word Search

Wordy

Zipper

1 foregone practice exercise

Point Mutations

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Programming Tags

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Help manage the tags used to group, filter and recommend solutions, approaches and articles.

0 tags

Test Runner

Learn More

Create Test Runners that have the single responsibility of taking a solution, running all tests and returning a standardized output.

Current version: b7948670fdd89a48734a411a199c673893501cc6 (Takes up to 10 mins to deploy)

Total Test Runner Runs

1,319,016

Test Run Pass Rate

16.9% (223035)

Test Run Fail Rate

23.2% (306596)

Test Run Error Rate

59.8% (789385)

Representer

Learn More

Build a Representer: a bit of code that has the single responsibility of taking a solution and returning a normalized representation of it.

Current version: 81e72fb6aa8d918f08aee3621cdbccb28a03f4cc (Takes up to 10 mins to deploy)

Total Representer Runs

248,937

Total Representation Comments Made

36,098

Feedback Given Frequency

14.5%

Analyzer

Learn More

Build an Analyzer for C++: Exercism's analyzers automatically assess student's submissions and provide mentor-style commentary.

Next goal: Build an Analyzer. Find out more.

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